Sliding door roller

A home owner from USA says:
Hello,

I was looking on the internet looking for rollers for my sliding glass door. My home was built in 1996 in North West Florida.
I took these pictures a couple years ago when I tried to find them at Lowes/Home Depot with no luck. I currently have a renter in my home and they need replacing. I heard you guys are the experts in letting me know what to buy from your company. Hopefully the attached pictures will be enough for you to identify them.

I have a question: Is that just a white plastic spacer above the adjusting screw?
Hopefully you can help.
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Casey from SWISCO responded:

Hello,

Your original roller looks very similar to our 81-033. Look it over and see how the dimensions compare to yours. 

Keep in mind that we do not sell the plastic bumper shown in your photos, but as long as our 81-033 is a match then you should be able to reuse the old ones without issue. 

As for measuring the wheel, you should be able to adjust the inner housing so that more of the wheel is exposed. Thanks for posting. 

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